She is really under the delusion that I'm a good looking guy and any girl would love to have me. I remember when I was in school and all and she used to ask me how many girls liked me. I mean I'm in my mid 20's and still haven't even met a girl now who was attracted to me and never kissed one yet, forget sex. Somehow I keep being told there's nothing wrong with how I look and all when I've ran out of count of how many girls that have called me ugly and said "eww". Anyways, are all mothers really like and think they have a good looking son? No matter how many girls are unattracted to some of the guys out there.
Family bias. That's is how I always took it. That's why I never take any complements from my family about me seriously. Or elderly people for that matter. It's just natural for a parent to think highly of his/her child.
Because parents are biased towards their children. She is not delusional she sees through the loving eyes of a mom. The love of a parent is the strongest love anyone can feel she can't help it. I have a son so I am speaking from experience.